iomenu

interactive text selection menu
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commit a74019ac53549e4017a2aa36bd377c1e0c2c9fc7
parent d445637975d35e90023bcf4c7ebe73367b8b66e3
Author: Josuah Demangeonā  ā µ <mail@josuah.net>
Date:   Sun, 19 Mar 2017 01:35:48 +0100

working horizontal scrolling

Diffstat:
Miomenu.c | 60++++++++++++++++++++++++++++++------------------------------
1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/iomenu.c b/iomenu.c @@ -18,15 +18,15 @@ char input[BUFSIZ]; -size_t current = 0, offset = 0, prev = 0, next = 0; -size_t linec = 0, matchc = 0; +int current = 0, offset = 0, prev = 0, next = 0; +int linec = 0, matchc = 0; char **linev = NULL, **matchv = NULL; char *opt_prompt = ""; int opt_lines = 0; void -free_v(char **v, size_t c) +free_v(char **v, int c) { for (; c > 0; c--) free(v[c - 1]); @@ -53,7 +53,7 @@ set_terminal(int tty_fd) if (tcgetattr(tty_fd, &termio_old) < 0) die("Can not get terminal attributes with tcgetattr()."); - termio_new = termio_old; + termio_new = termio_old; termio_new.c_lflag &= ~(ICANON | ECHO | IGNBRK); tcsetattr(tty_fd, TCSANOW, &termio_new); @@ -66,7 +66,7 @@ void read_lines(void) { char buffer[BUFSIZ]; - size_t size = 1 << 6; + int size = 1 << 6; linev = malloc(sizeof (char **) * size); matchv = malloc(sizeof (char **) * size); @@ -77,7 +77,7 @@ read_lines(void) /* read the file into an array of lines */ for (; fgets(buffer, sizeof buffer, stdin); linec++, matchc++) { - size_t len = strlen(buffer); + int len = strlen(buffer); if (len > 0 && buffer[len - 1] == '\n') buffer[len - 1] = '\0'; @@ -100,9 +100,9 @@ read_lines(void) int -match_line(char *line, char **tokv, size_t tokc) +match_line(char *line, char **tokv, int tokc) { - for (size_t i = 0; i < tokc; i++) + for (int i = 0; i < tokc; i++) if (strstr(line, tokv[i]) == NULL) return 0; @@ -114,7 +114,7 @@ void filter_lines(void) { char **tokv = NULL, *s, buffer[sizeof (input)]; - size_t tokc = 0, n = 0; + int tokc = 0, n = 0; current = offset = prev = next = 0; @@ -133,7 +133,7 @@ filter_lines(void) } matchc = 0; - for (size_t i = 0; i < linec; i++) + for (int i = 0; i < linec; i++) if (match_line(linev[i], tokv, tokc)) matchv[matchc++] = linev[i]; @@ -147,17 +147,16 @@ print_string(char *str, int current) fputs(current ? "\033[30;47m" : "", stderr); fputs(opt_lines ? "\033[K " : " ", stderr); fprintf(stderr, "%s \033[m", str); - fputs(" \033[m", stderr); } void -print_lines(size_t count, size_t cols) +print_lines(int count, int cols) { - size_t p = 0; /* amount of lines printed */ + int p = 0; /* amount of lines printed */ offset = current / count * count; - for (size_t i = offset; p < count && i < matchc; p++, i++) { + for (int i = offset; p < count && i < matchc; p++, i++) { fputc('\n', stderr); print_string(matchv[i], i == current); } @@ -168,24 +167,25 @@ print_lines(size_t count, size_t cols) void -update_pages(size_t pos, size_t cols) +update_pages(int pos, int cols) { - size_t col; + int col; for (prev = pos, col = 0; prev > 0; prev--) if ((col += strlen(matchv[prev]) + 2) > cols) break; - for (next = pos, col = 0; next < matchc; next++) + for (next = pos, col = 0; next <= matchc; next++) if ((col += strlen(matchv[next]) + 2) > cols) break; + next++; next--; } void -print_columns(size_t cols) +print_columns(int cols) { if (current < offset) { offset = prev; @@ -196,22 +196,22 @@ print_columns(size_t cols) update_pages(offset, cols - 30 - 1); } - for (size_t i = offset; i < next && i < matchc; i++) + for (int i = offset; i < next && i < matchc; i++) print_string(matchv[i], i == current); if (next < matchc) - fprintf(stderr, "\033[%ldC>", cols); + fprintf(stderr, "\033[%dC>", cols); } void -print_prompt(size_t cols) +print_prompt(int cols) { - size_t limit = opt_lines ? cols : 30; + int limit = opt_lines ? cols : 30; fputc('\r', stderr); - for (size_t i = 0; i < limit - 2; i++) + for (int i = 0; i < limit - 2; i++) fputc(' ', stderr); fputs(offset > 0 ? "< " : " ", stderr); @@ -224,7 +224,7 @@ void print_screen(int tty_fd) { struct winsize w; - size_t count; + int count; if (ioctl(tty_fd, TIOCGWINSZ, &w) < 0) die("could not get terminal size"); @@ -235,7 +235,7 @@ print_screen(int tty_fd) if (opt_lines) { print_lines(count, w.ws_col); - fprintf(stderr, "\033[%ldA", count + 1); + fprintf(stderr, "\033[%dA", count + 1); } else { fputs("\033[30C", stderr); print_columns(w.ws_col); @@ -246,18 +246,18 @@ print_screen(int tty_fd) void -print_clear(size_t lines) +print_clear(int lines) { - for (size_t i = 0; i < lines + 1; i++) + for (int i = 0; i < lines + 1; i++) fputs("\r\033[K\n", stderr); - fprintf(stderr, "\033[%ldA", lines + 1); + fprintf(stderr, "\033[%dA", lines + 1); } void remove_word_input() { - size_t len = strlen(input) - 1; + int len = strlen(input) - 1; for (int i = len; i >= 0 && isspace(input[i]); i--) input[i] = '\0'; @@ -273,7 +273,7 @@ remove_word_input() void add_character(char key) { - size_t len = strlen(input); + int len = strlen(input); if (isprint(key)) { input[len] = key;